油流继电器是大型电力变压器冷却循环系统的重要部件。
The oil flowing relay is the important prot of the cooling system of power transformer.
是一家集科研、开发、生产和销售固态继电器和电力电子模块为一体的高新科技企业。
Is a collection of scientific research, development, production and marketing of solid state relays and power electronic modules as one of the hi-tech enterprises.
早在19世纪末，过电流继电器就被用于保护电力系统。
As early as the end of 19th century, overcurrent relay has been used to protect electric power system.
现有的韶山型电力机车空气制动系统大都采用DK—1型电空制动机作为控制部件，其核心是采用继电器有触点逻辑控制。
Existing electric locomotive air brakes of Shao Shan types are mostly used DK-1 model electric-air braking machine as control component, its core is to adopt the relay and touch logic control.
本文提出了电力变压器内部相间故障的分析方法，比较了距离继电器及其他后备保护在此故障时的灵敏度。
In this paper the method of analyzing the phase-to-phase faults in power transformers is presented. The sensitivities of distance relays and other back-up protections during the faults are compared.
本实用新型涉及一种闪光继电器，属电力电子技术应用领域。
The utility model relates to a flashing relay, which belongs to the electric power and electronic technology application field.
气体继电器保护是电力变压器的一种基本保护。
Protection by gas relay is one of the elemental protection of transformer.
故障诊断系统依据保护继电器和断路器的采样信息估计电力系统中故障段的位置。
The diagnostic system can be applicable to power system control center for fault section estimation using information of relays and circuit breakers.
讨论了静态型继电器应用于电力系统继电保护后，在可靠性方面出现的一些新问题，分析了产生这些问题的原因，并提出了继电器选型、产品失效预测方面的建议。
A discussion on the reliablilty of static relays is made in this thesis , because some new problems have arisen after static relays are applied on the relay protection of electric system .
元件上的继电器的线路没有电力。
该通信系统包括在一个电力系统的电力线部分上用于在两个保护继电器之间交换保护和控制信息的两个通信信道。
The communication system includes two communication channels for communication of protection and control information between two protective relays on a power line portion of an electric power system.
方向阻抗继电器是高压电力网中最常用的继电器之一。
Directional impedance relays (mho relays) are frequently used in high-voltage power systems.
方向阻抗继电器是高压电力网中最常用的继电器之一。
Directional impedance relays (mho relays) are frequently used in high-voltage power systems.
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